package com.lzh.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.lzh.common.utils.HttpUtils;
import com.lzh.common.utils.R;
import com.lzh.common.vo.MemberResponseVo;
import com.lzh.gulimall.auth.feign.MemberFeignService;
import com.lzh.gulimall.auth.vo.SocialUser;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import lombok.extern.slf4j.XSlf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpSession;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;

import static com.lzh.common.constant.AuthServerConstant.LOGIN_USER;

/**
 * @ClassName OAuth2Controller
 * @Description TODO
 * @Author liuzhihui
 * @Date 2020/8/31 21:26
 * @Version 1.0
 **/
@Slf4j
@Controller
public class OAuth2Controller  {

    @Autowired
    private MemberFeignService memberFeignService;

    @GetMapping(value = "test/springsession")
    @ResponseBody
    public void test(HttpSession session){
        User user=new User("张三",15);
        session.setAttribute("loginUSer",user);
    }

    @GetMapping(value = "/oauth2.0/weibo/success")
    public String weibo(@RequestParam("code") String code, HttpSession session){
        try {
            Map<String, String> map = new HashMap<>();
            map.put("client_id","1708420305");
            map.put("client_secret","44e78356de782dca5f37ebad916f1f1f");
            map.put("grant_type","authorization_code");
            map.put("redirect_uri","http://auth.gulimall.com/oauth2.0/weibo/success");
            map.put("code",code);

            //1、根据code换取access_token
            HttpResponse response = HttpUtils.doPost("https://api.weibo.com", "/oauth2/access_token", "post", new HashMap<>(), map, new HashMap<>());
            //2、处理
            if (response.getStatusLine().getStatusCode() == 200) {
                //获取到了access_token
                String json = EntityUtils.toString(response.getEntity());
                //String json = JSON.toJSONString(response.getEntity());
                SocialUser socialUser = JSON.parseObject(json, SocialUser.class);

                //知道了哪个社交用户
                //1）、当前用户如果是第一次进网站，自动注册进来（为当前社交用户生成一个会员信息，以后这个社交账号就对应指定的会员）
                //登录或者注册这个社交用户
                System.out.println(socialUser.getAccess_token());
                //调用远程服务
                R oauthLogin = memberFeignService.oauthLogin(socialUser);
                if (oauthLogin.getCode() == 0) {
                    MemberResponseVo data = (MemberResponseVo) oauthLogin.getData("data", new TypeReference<MemberResponseVo>() {});
                    log.info("登录成功：用户信息：{}",data.toString());

                    //1、第一次使用session，命令浏览器保存卡号，JSESSIONID这个cookie
                    //以后浏览器访问哪个网站就会带上这个网站的cookie
                    //TODO 1、默认发的令牌。当前域（解决子域session共享问题）
                    //TODO 2、使用JSON的序列化方式来序列化对象到Redis中
                    session.setAttribute(LOGIN_USER,data);

                    //2、登录成功跳回首页
                    return "redirect:http://gulimall.com";
                } else {
                    return "redirect:http://auth.gulimall.com/login.html";
                }
            } else {
                return "redirect:http://auth.gulimall.com/login.html";
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        //2、登录成功跳回首页
        return "redirect:http://gulimall.com";    }
}
